[senlin] Transition Ocata to End of Life

This transition the Ocata branch to End of Life. The last patch of the
branch will be tagged with ocata-eol tag. The ocata branch cannot be
used anymore and will be deleted if this patch merges.

This is needed as stable/ocata is not actively maintained in the recent
period and thus gate is broken due to job failures. By removing these
branches, infra resources will be freed up, too.

Please try to identify any zuul job, that is defined outside of the
repositories in this patch (for example in openstack-zuul-jobs, etc.)
and won't be used anymore if stable/ocata is deleted, and propose a job
removal patch for them.

Please +1 if the team is ready for us to proceed with this transition,
or -1 if there are still some activity on the branch and the team wants
to continue to maintain it.

Change-Id: I53e011f2656483cfec8194929486d4ec1ebe6230

deliverables/ocata/python-senlinclient.yaml

@@ -21,5 +21,9 @@ releases:
       - hash: 9df5282567b67225ad3407dbfff2783c7bd75bff
         repo: openstack/python-senlinclient
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/python-senlinclient
+        hash: 1c5851faf9a12853fe56d4f5ccd198206c0375b4
 repository-settings:
   openstack/python-senlinclient: {}

deliverables/ocata/senlin-dashboard.yaml

@@ -16,6 +16,10 @@ releases:
       - hash: 59eaf4d998c60474de3a098a4d08ed0e4fa0e252
         repo: openstack/senlin-dashboard
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/senlin-dashboard
+        hash: 41e4eb744ff0f6a0efe9af2583e7cc54bc2559e0
 repository-settings:
   openstack/senlin-dashboard: {}
 # Retriggering ocata-em tagging

deliverables/ocata/senlin.yaml

@@ -41,6 +41,10 @@ releases:
       - hash: ce509a040a55bcf62729c2f3934cb7df2e90a40a
         repo: openstack/senlin
     version: ocata-em
+  - version: ocata-eol
+    projects:
+      - repo: openstack/senlin
+        hash: 29a73afcd0972e6a83a494ccb9eaf4d08121e367
 repository-settings:
   openstack/senlin: {}
 # Retriggering ocata-em tagging